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 Fifty Plus (50+) Share the victories, challenges, successes and special concerns of bicyclists 50 and older. Especially useful for those entering or reentering bicycling.

 07-01-06, 12:43 AM #1 dauphin Senior Member Thread Starter     Join Date: Jun 2006 Location: California Bikes: Posts: 2,991 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 1 Post(s) What's the grade? Ok...so the past few days I've been trying to challenge myself with hills that before I avoided like the plague. Today I rode up a pretty scary hill around 11am and did it around 8 mph from bottom to top. Does anyone here have any idea how to figure the grade of a hill? For those of us (ME) who are mathematically challenged....keep it simple. __________________
 07-01-06, 01:05 AM #2 neilG Senior Member     Join Date: May 2005 Location: Ventura, CA Bikes: Madone, De Rosa, Langster, some old Brit track iron Posts: 441 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) Rise divided by length. If you gain 200 ft. of altitude in a mile: 200/5280 = 3.8% grade. We math-impaired people have to stick together.
07-01-06, 06:05 AM   #3
stapfam
Time for a change.

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 Originally Posted by neilG Rise divided by length. If you gain 200 ft. of altitude in a mile: 200/5280 = 3.8% grade. We math-impaired people have to stick together.
Thats not a hill- Its a slope. Sorry about that but I divide height climbed into distance so 200metre climb in 1000metre will be 200/1,000 will equal 1 in 5 or 20 % Exactly the same maths but why worry- Hills are only good for going down and then the only thing to worry about is do my brakes work.
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 07-01-06, 06:30 AM #4 DnvrFox Banned.     Join Date: Aug 2001 Bikes: Posts: 20,917 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) I've found it best just to go down hills.
 07-01-06, 10:56 AM #5 Digital Gee I need more cowbell.     Join Date: Jun 2005 Location: Reno, Nevada Bikes: 2015 Specialized Sirrus Elite, 2012 Masi Evoluzione Posts: 8,111 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 2 Post(s) Yeah, but what i can't figure out is how much elevation has been achieved in a given distance. How does one know that? __________________ 2015 Sirrus Elite 2012 Masi Evoluzione Proud member of the original Club Tombay
07-01-06, 11:09 AM   #6
jppe
Let's do a Century

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Quote:
 Originally Posted by dauphin Ok...so the past few days I've been trying to challenge myself with hills that before I avoided like the plague. Today I rode up a pretty scary hill around 11am and did it around 8 mph from bottom to top. Does anyone here have any idea how to figure the grade of a hill? For those of us (ME) who are mathematically challenged....keep it simple.
I have a cyclometer that will indicate the grade. While it's not 100% accurate it works pretty well.

07-01-06, 01:56 PM   #7
neilG
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Quote:
 Originally Posted by Digital Gee Yeah, but what i can't figure out is how much elevation has been achieved in a given distance. How does one know that?